SAT Subject Physics Practice Question 414: Answer and Explanation

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Question: 414

5. Geosynchronous satellites remain over the same spot on the earth's surface because they

A. orbit the earth every 24 hours.
B. are in polar orbits.
C. rotate opposite the earth's rotational direction.
D. have a varying orbital height.
E. use terrain reading technology to remain on station.

Correct Answer: A


The correct answer is (A). The geosynchronous satellite circles the earth at the same rate as the earth turns beneath it. Thus the satellite stays in the same position relative the earth.

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